デザインパターン「Prototype」 ref: http://qiita.com/shoheiyokoyama/items/61826e158b3c4a259065

file1.js

public interface Product extends Cloneable {

    public abstract void use(String s);
    public abstract Product createClone();
}

file5.java

Git Hub
-------
@@@@@@@@@
@ Qiita @
@@@@@@@@@
♪♪♪♪♪♪♪♪
♪ Java ♪
♪♪♪♪♪♪♪♪

Main.java

public static void main(String[] args) {

        Manager manager = new Manager();

        UnderLinepen upen = new UnderLinePen('-');
        MessageBox mbox = new MessageBox('@');
        MessageBox sbox = new MessageBox('♪');

        manager.register("stong message", upen);
        manager.register("warning box", mbox);
        manager.register("slash box", sbox);

        Product p1 = manager.create("stong message");
        p1.use("Git Hub");
        Product p2 = manager.create("warning box");
        p2.use("Qiita");
        Product p3 = manager.create("slash box");
        p3.use("Java");
}

Manager.java

public class Manager {
    private HashMap showcase = new HashMap();
    public void register(String name, Product prototype) {
        showcase.put(name, prototype);
    }

    public Product create(String protoname) {
        //※
        Product p = (Product)showcase.get(protoname);
        return p.createClone();
    }
}

MessageBox.java

public class MessageBox implements Product {
    private char decoChar;
    public MessageBox(char decoChar) {
        this.decoChar = decoChar;
    }

    @Override
    public void use(String string) {
        int length = string.getBytes().length;
        for (int i = 0; i < length + 4; i++) {
            System.out.print(decoChar);
        }
        System.out.println("");
        System.out.println(decoChar + " " + string + " " + decoChar);

        for (int i = 0; i < length + 4; i++) {
            System.out.print(decoChar);
        }
        System.out.println("");
    }

    //Productインターフェイスを実装してなければCloneNotSupportedExceptionが投げられる
    @Override
    public Product createClone() {
        Product p = null;
        try {
            p = (Product)clone();
        } catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        return p;
    }
}

Product.java

public interface Product extends Cloneable {

    public abstract void use(String s);
    public abstract Product createClone();
}

UnderLinePen.java

public class UnderLinePen implements Product {
    private char ulChar;

    public UnderLinePen(char ulChar) {
        this.ulChar = ulChar;
    }

    @Override
    public void use(String string) {
        int length = string.getBytes().length;
        System.out.println(string);
        System.out.print("");
        for (int i = 0; i < length; i++) {
            System.out.print(ulChar);
        }
        System.out.println("");

    }

    @Override
    public Product createClone() {
        Product p = null;
        try {
            p = (Product)clone();
        } catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
        return p;
    }

}